need to see if I can make this work... I am doing home work for my 63 f-250 2x4 to 4x4 y-block conversion. I just acquired a 77 f-250 4speed trans Says NP on it, not sure of model yet, (engine was a 400) and a divorced np 205 t-case & all shafts to go along with it. I will be fabbing up nearly all mounts for this, but am trying to not end up with a 6 inch drive-shaft, so I would like to do the t-5 with this set up for highway purposes.